Trait hpke_rs_crypto::HpkeCrypto[−][src]

pub trait HpkeCrypto: Debug + Send + Sync {
    type HpkePrng: RngCore + CryptoRng + HpkeTestRng;

Show 13 methods    fn prng() -> Self::HpkePrng;

    fn kdf_extract(alg: KdfAlgorithm, salt: &[u8], ikm: &[u8]) -> Vec<u8>;

    fn kdf_expand(
        alg: KdfAlgorithm, 
        prk: &[u8], 
        info: &[u8], 
        output_size: usize
    ) -> Result<Vec<u8>, Error>;

    fn kem_derive(
        alg: KemAlgorithm, 
        pk: &[u8], 
        sk: &[u8]
    ) -> Result<Vec<u8>, Error>;

    fn kem_derive_base(alg: KemAlgorithm, sk: &[u8]) -> Result<Vec<u8>, Error>;

    fn kem_key_gen(
        alg: KemAlgorithm, 
        prng: &mut Self::HpkePrng
    ) -> Result<Vec<u8>, Error>;

    fn kem_validate_sk(alg: KemAlgorithm, sk: &[u8]) -> Result<Vec<u8>, Error>;

    fn aead_seal(
        alg: AeadAlgorithm, 
        key: &[u8], 
        nonce: &[u8], 
        aad: &[u8], 
        msg: &[u8]
    ) -> Result<Vec<u8>, Error>;

    fn aead_open(
        alg: AeadAlgorithm, 
        key: &[u8], 
        nonce: &[u8], 
        aad: &[u8], 
        msg: &[u8]
    ) -> Result<Vec<u8>, Error>;

    fn kdf_digest_length(alg: KdfAlgorithm) -> usize { ... }

    fn aead_key_length(alg: AeadAlgorithm) -> usize { ... }

    fn aead_nonce_length(alg: AeadAlgorithm) -> usize { ... }

    fn aead_tag_length(alg: AeadAlgorithm) -> usize { ... }

}
Expand description

The HpkeCrypto trait defines the necessary cryptographic functions used in the HPKE implementation.

Associated Types

The PRNG implementation returned in HpkeCrypto::prng().

Required methods

Get a stateful PRNG. Note that this will create a new PRNG state.

KDF Extract

KDF Expand

KEM Derive

KEM Derive with base

KEM Key generation

Validate a secret key for its correctness.

AEAD encrypt.

AEAD decrypt.

Provided methods

Get the length of the output digest.

Get key length for AEAD.

Note that this function returns 0 for export only keys of unknown size.

Get key length for AEAD.

Note that this function returns 0 for export only nonces of unknown size.

Get key length for AEAD.

Note that this function returns 0 for export only tags of unknown size.

Implementors